Is QuinStreet, Inc. overvalued or undervalued?

As of 17 October 2025, QuinStreet, Inc. moved from expensive to attractive, indicating a shift in valuation perception. The company appears overvalued, with a P/E ratio of 378, significantly higher than peers like Omnicom Group, Inc. at 14.28 and Interpublic Group of Cos., Inc. at 12.38. Additionally, QuinStreet's EV to EBITDA stands at 30.49, while its PEG ratio is 3.68, suggesting that despite the attractive valuation grade, the stock remains expensive relative to its earnings growth potential.
In terms of performance, QuinStreet's returns have lagged behind the S&P 500, particularly over the year with a decline of 26.16% compared to the index's gain of 14.08%. This underperformance reinforces the notion that the stock may be overvalued, especially given its high valuation ratios compared to industry peers.